Hi there,
For the cropping, you can try adding this CSS:
.wpsp-card .wp-show-posts-image img,
.wpsp-card.wp-show-posts-columns .wp-show-posts-single .wp-show-posts-image img {
width: 100% !important;
height: auto !important;
}
But I think you should keep the default if you’re not faithfully uploading same aspect ratio images. The default CSS was written to crop images on purpose in consideration of posts with featured images of different aspect ratios.
Let us know how it goes.